code: def from_xyv(cls, keypoints, labels):
      return cls(keypoints, labels)
  
file_path: icevision/icevision/core/keypoints.py
imports: from icevision.imports import *
  from .exceptions import *
label_desc: Use image node_id 2 for calling the KeyPoints obj's underlying member method code with example usage: obj.from_xyv(cls, keypoints, labels) and returns: cls